Esprit de Corps literally means "spirit of the group". If you've ever been on a sports team that had great morale and team spirit, you've experienced esprit de corps. It is a shared spirit of camaraderie, enthusiasm, and devotion to a cause among the members of a group.
The Esprit de Corps Program is a near-peer mentorship program for 1st year PhD students open to all first-year students with a curriculum that focuses on supporting students from diverse backgrounds ease the transition into graduate school.
For more information click here https://gradschool.weill.cornell.edu/student-experience/diversity-and-inclusion/esprit-de-corps